PARIS, France -- Carbon dioxide detected on Jupiter's moon Europa comes from the vast ocean beneath its icy shell, research using James Webb Space Telescope data indicated on Thursday, potentially bolstering hopes the hidden water could harbour life.
Scientists are confident there is a huge ocean of saltwater kilometres below Europa's ice-covered surface, making the moon a prime candidate for hosting extra-terrestrial life in our Solar System.
Aiming to find an answer, two US-led teams of researchers used data from the Webb telescope's near-infrared spectrometer to map CO2 on the surface of Europa, publishing their results in separate studies in the journal Science. The first study used the Webb data to look at whether the CO2 could have come from somewhere other than the ocean below -- hitching a ride on a meteorite, for example.
"So now we've got salt, we've got CO2: we're starting to learn a little bit more what that internal chemistry might look like," Trumbo said. Juice project scientist Olivier Witasse welcomed the two new studies, saying they were"very exciting".
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